Komatsu 703-07-13141 Swivel Joint Seal Kit

The 703-07-13141 swivel joint seal kit is engineered to restore sealing integrity of the hydraulic center joint (swivel joint) on Komatsu mini excavators. The kit comprises an 11-way ring arrangement designed for a 70mm inner diameter bore, ensuring precise fitment and pressure retention in the rotating hydraulic interface between upper structure and undercarriage. Manufactured to OEM dimensional standards, the kit includes all necessary seals for a complete overhaul of the center joint assembly. It addresses common failure modes such as hydraulic drift, cross-contamination of circuits, and pressure loss during slewing operations. Direct replacement for Komatsu part numbers 703-07-13141 and 7030713141.